S
M
T
W
T
F
S
28
72°
50°
29
68°
51°
30
73°
49°
1
71°
53°
2
66°
56°
3
67°
54°
4
70°
51°
5
60°
47°
6
65°
47°
7
75°
50°
8
74°
48°
9
75°
51°
10
70°
50°
11
74°
50°
12
75°
53°
13
72°
54°
14
75°
52°
15
69°
51°
16
70°
52°
17
69°
54°
18
73°
53°
19
72°
52°
20
69°
51°
21
68°
51°
22
69°
52°
23
70°
52°
24
70°
51°
25
71°
54°
26
75°
55°
27
73°
55°
28
74°
54°
29
73°
54°
30
70°
55°
31
72°
56°
1
73°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Riverhead
Riverhead's July 2026 forecast shows daily high temperatures ranging from 60° to 75°, with overnight lows between 47° and 56°. The average high for July is 71° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Riverhead. See also: August | September | October.
